/* =========================================================
   Atlantic Structures Engineering – website styles
   Change colors here and the whole site follows.
   ========================================================= */
:root {
  --navy: #0b1f3a;
  --navy-2: #12305a;
  --blue: #1f63c6;
  --blue-dark: #174f9f;
  --cyan: #3fb5e8;
  --accent: #f3a54f;
  --text: #142033;
  --muted: #56627a;
  --line: rgba(15, 40, 80, .12);
  --glass: rgba(255, 255, 255, .62);
  --glass-strong: rgba(255, 255, 255, .82);
  --glass-dark: rgba(255, 255, 255, .07);
  --glass-border: rgba(255, 255, 255, .55);
  --radius: 16px;
  --shadow: 0 10px 40px rgba(11, 31, 58, .10);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html:has(.page-bg) { background: #0b1f3a; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text); line-height: 1.6; font-size: 17px;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  background:
    radial-gradient(1200px 700px at 100% 0%, rgba(63,181,232,.10), transparent 60%),
    radial-gradient(900px 600px at 0% 40%, rgba(31,99,198,.08), transparent 60%),
    #f6f9fd;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue); }
h1, h2, h3 { line-height: 1.1; margin: 0 0 .5em; color: var(--navy); letter-spacing: -.025em; }
h1 { font-size: clamp(2.5rem, 6.2vw, 4.8rem); font-weight: 800; color: #fff; }
h2 { font-size: clamp(1.9rem, 3.6vw, 3rem); font-weight: 800; }
h3 { font-size: 1.2rem; font-weight: 700; letter-spacing: -.01em; }
p { margin: 0 0 1em; }

.wrap { max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.section { padding: 110px 0; position: relative; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  text-transform: uppercase; letter-spacing: .16em; font-size: .76rem; font-weight: 700;
  color: var(--blue); margin-bottom: 1.1em;
}
.eyebrow::before { content: ""; width: 28px; height: 2px; background: currentColor; }
.sub { color: var(--muted); font-size: 1.1rem; margin-bottom: 2.6rem; max-width: 720px; }
.grad-text { background: linear-gradient(90deg, var(--blue), var(--cyan)); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ===== Glass ===== */
.glass {
  background: var(--glass);
  -webkit-backdrop-filter: blur(18px) saturate(160%); backdrop-filter: blur(18px) saturate(160%);
  border: 1px solid var(--glass-border); border-radius: var(--radius); box-shadow: var(--shadow);
}
.glass-dark {
  background: var(--glass-dark);
  -webkit-backdrop-filter: blur(16px) saturate(140%); backdrop-filter: blur(16px) saturate(140%);
  border: 1px solid rgba(255,255,255,.14); border-radius: var(--radius);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 15px 28px; border-radius: 12px;
  background: linear-gradient(135deg, var(--blue), #2f7fe0); color: #fff; text-decoration: none; font-weight: 700; font-size: .98rem;
  border: 0; transition: transform .2s, box-shadow .2s; cursor: pointer; box-shadow: 0 8px 24px rgba(31,99,198,.35);
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(31,99,198,.45); }
.btn .arrow { transition: transform .2s; }
.btn:hover .arrow { transform: translateX(4px); }
.btn-glass { background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.45); box-shadow: none; -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); }
.btn-glass:hover { background: rgba(255,255,255,.22); box-shadow: none; }
.btn-white { background: #fff; color: var(--navy); box-shadow: 0 8px 24px rgba(0,0,0,.2); }
.btn-small { padding: 9px 18px; font-size: .9rem; border-radius: 10px; }

/* ===== Header ===== */
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 50; transition: background .25s, box-shadow .25s; }
.site-header.solid, .site-header.always-solid {
  background: rgba(255,255,255,.72); -webkit-backdrop-filter: blur(18px) saturate(170%); backdrop-filter: blur(18px) saturate(170%);
  box-shadow: 0 1px 0 var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: #fff; font-weight: 500; font-size: 1.02rem; }
.brand b { font-weight: 800; }
.solid .brand, .always-solid .brand { color: var(--navy); }
.solid .brand b, .always-solid .brand b { color: var(--blue); }
.menu { display: flex; align-items: center; gap: 30px; }
.menu a { text-decoration: none; color: #fff; font-weight: 600; font-size: .95rem; }
.solid .menu a, .always-solid .menu a { color: var(--text); }
.menu a:hover { color: var(--accent); }
.solid .menu a:hover, .always-solid .menu a:hover { color: var(--blue); }
.menu a.btn, .solid .menu a.btn, .always-solid .menu a.btn { color: #fff; }
.menu-btn { display: none; background: none; border: 0; font-size: 1.8rem; color: #fff; cursor: pointer; }
.solid .menu-btn, .always-solid .menu-btn { color: var(--navy); }
.lock { width: 15px; height: 15px; flex: none; }

/* ===== Hero ===== */
.hero {
  position: relative; min-height: 94vh; display: flex; align-items: center;
  background: var(--navy) url("images/hero.webp") right 35% / cover no-repeat;
  color: #fff; padding: 130px 0 100px; overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(6,16,34,.82) 0%, rgba(6,16,34,.45) 42%, rgba(6,16,34,0) 75%),
              linear-gradient(0deg, rgba(6,16,34,.5) 0%, rgba(6,16,34,0) 30%);
}
.hero .wrap { position: relative; width: 100%; }
.hero-card { max-width: 700px; }
.hero .eyebrow { color: var(--accent); }
.hero .lead { font-size: clamp(1.1rem, 1.8vw, 1.35rem); color: #e8eef8; max-width: 600px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.hero-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 46px; }
.hero-chips span { padding: 8px 14px; border-radius: 999px; font-size: .85rem; font-weight: 600; color: #eaf1fb; }

/* ===== Statement + about ===== */
.statement { padding: 110px 0 30px; }
.statement .big { font-size: clamp(1.45rem, 2.7vw, 2.2rem); line-height: 1.33; font-weight: 650; color: var(--navy); letter-spacing: -.018em; max-width: 1080px; margin: 0; }
.split { display: grid; grid-template-columns: 1.1fr 1fr; gap: 70px; align-items: center; }
.split-img { border-radius: var(--radius); overflow: hidden; aspect-ratio: 4 / 3.2; box-shadow: 0 30px 60px rgba(11,31,58,.22); position: relative; }
.split-img img { width: 100%; height: 100%; object-fit: cover; }
.split-img .float { position: absolute; left: 20px; bottom: 20px; right: 20px; padding: 18px 22px; color: #fff; }
.split-img .float strong { display: block; font-size: 1.6rem; letter-spacing: -.02em; }
.split-img .float span { color: #c9d6ea; font-size: .92rem; }
.split p { color: var(--muted); font-size: 1.05rem; }
.values { list-style: none; padding: 0; margin: 28px 0 0; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.values li { padding: 14px 16px; font-weight: 700; color: var(--navy); display: flex; gap: 10px; align-items: center; }
.values li::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: linear-gradient(135deg, var(--blue), var(--cyan)); flex: none; }

/* ===== Services over image ===== */
.services { background: url("images/day.webp") center / cover no-repeat fixed; position: relative; }
.services::before { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(246,249,253,.92) 0%, rgba(246,249,253,.55) 45%, rgba(246,249,253,.85) 100%); }
.services .wrap { position: relative; }
.tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.tile { padding: 34px 30px; transition: transform .25s, background .25s, box-shadow .25s; min-height: 220px; }
.tile .num { font-weight: 800; font-size: .85rem; display: inline-block; margin-bottom: 34px; padding: 6px 10px; border-radius: 8px; background: rgba(31,99,198,.1); color: var(--blue); }
.tile h3 { font-size: 1.3rem; }
.tile p { color: var(--muted); margin: 0; }
.tile:hover { transform: translateY(-4px); background: var(--glass-strong); box-shadow: 0 20px 50px rgba(11,31,58,.16); }

/* ===== Stats band ===== */
.stats-band { position: relative; color: #fff; padding: 110px 0; background: var(--navy) url("images/hero.webp") center 80% / cover no-repeat fixed; }
.stats-band::before { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(8,22,46,.9), rgba(12,40,84,.75)); }
.stats-band .wrap { position: relative; }
.stats-band h2 { color: #fff; margin-bottom: 50px; max-width: 700px; }
.stats-band .eyebrow { color: var(--accent); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.stats-grid > div { padding: 28px 24px; }
.stats-grid strong { display: block; font-size: clamp(1.6rem, 2.6vw, 2.3rem); font-weight: 800; letter-spacing: -.02em; line-height: 1.1; margin-bottom: 8px; }
.stats-grid span { color: #b6c6de; }

/* ===== Steps ===== */
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.steps li { padding: 24px 22px; position: relative; overflow: hidden; }
.steps li::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--blue), var(--cyan)); }
.steps .num { font-weight: 800; color: var(--blue); font-size: .85rem; }
.steps h3 { margin: 6px 0 6px; }
.steps p { color: var(--muted); font-size: .95rem; margin: 0; }

/* ===== Team ===== */
.team-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.person { padding: 32px; }
.person .role { color: var(--blue); font-weight: 700; font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; }
.person h3 { margin-top: 8px; }
.person p { color: var(--muted); margin: 0; }

/* ===== Portfolio CTA ===== */
.portfolio-cta { position: relative; padding: 130px 0; background: var(--navy) url("images/blue.webp") center / cover no-repeat; }
.portfolio-cta::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(8,22,46,.25), rgba(8,22,46,.65)); }
.cta-card { position: relative; max-width: 620px; margin-left: auto; padding: 44px; display: grid; grid-template-columns: 1fr auto; gap: 30px; align-items: end; }
.cta-card .eyebrow { grid-column: 1 / -1; margin-bottom: 0; }
.cta-card p { color: var(--muted); }
.cta-card .qr { text-align: center; font-size: .78rem; color: var(--muted); }
.cta-card .qr img { width: 120px; height: 120px; border-radius: 10px; background: #fff; padding: 6px; margin-bottom: 6px; }
.cta-card small { display: block; color: var(--muted); margin-top: 14px; font-size: .85rem; }

/* ===== Contact ===== */
.contact { position: relative; color: #d7e2f3; padding: 120px 0; background: var(--navy) url("images/hero.webp") center 30% / cover no-repeat; }
.contact::before { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(6,16,34,.78), rgba(6,16,34,.9)); }
.contact .wrap { position: relative; }
.contact h2 { color: #fff; max-width: 760px; }
.contact .eyebrow { color: var(--accent); }
.contact .lead { font-size: 1.2rem; margin-bottom: 34px; }
.contact-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.contact .btn-white { word-break: break-all; }
.addr { margin-top: 26px; color: #a9bbd6; display: flex; gap: 8px; align-items: center; }

/* ===== Footer ===== */
.site-footer { background: #061226; color: #8697b0; font-size: .92rem; padding: 70px 0 30px; }
.foot-grid { display: grid; grid-template-columns: 2fr 1fr 1.3fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,.1); }
.site-footer h4 { color: #fff; font-size: .78rem; text-transform: uppercase; letter-spacing: .16em; margin: 0 0 16px; }
.site-footer a { color: #c5d2e6; text-decoration: none; }
.site-footer a:hover { color: #fff; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.foot-brand { display: flex; align-items: center; gap: 12px; color: #fff; font-weight: 700; margin-bottom: 14px; }
.foot-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; padding-top: 24px; font-size: .85rem; }

/* ===== Inner pages (request form, portfolio) ===== */
.page-bg { min-height: 100vh; background: var(--navy) url("images/blue.webp") center / cover fixed no-repeat; position: relative; }
.page-bg::before { content: ""; position: fixed; inset: 0; background: linear-gradient(160deg, rgba(6,16,34,.55), rgba(10,34,72,.75)); pointer-events: none; }
.page-bg > * { position: relative; }
.form-wrap { max-width: 860px; margin: 0 auto; padding: 120px 20px 80px; }
.form-head { color: #fff; margin-bottom: 26px; }
.form-head h1 { font-size: clamp(2rem, 4.5vw, 3rem); }
.form-head p { color: #d2ddef; font-size: 1.08rem; max-width: 640px; }
.form-card { padding: 36px; background: var(--glass-strong); }
.notice { padding: 14px 18px; border-radius: 12px; background: rgba(243,165,79,.16); border: 1px solid rgba(243,165,79,.5); color: #7a4a10; margin-bottom: 22px; font-weight: 600; }
fieldset { border: 0; padding: 0; margin: 0 0 26px; }
legend { font-weight: 800; color: var(--navy); margin-bottom: 12px; font-size: 1.05rem; }
.choices { display: flex; flex-wrap: wrap; gap: 10px; }
.choices label { cursor: pointer; }
.choices input { position: absolute; opacity: 0; pointer-events: none; }
.choices span { display: inline-block; padding: 10px 16px; border-radius: 999px; border: 1px solid var(--line); background: rgba(255,255,255,.8); font-weight: 600; font-size: .95rem; transition: .15s; }
.choices input:checked + span { background: var(--blue); color: #fff; border-color: var(--blue); box-shadow: 0 6px 16px rgba(31,99,198,.3); }
.choices input:focus-visible + span { outline: 3px solid rgba(31,99,198,.35); }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 18px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-weight: 600; font-size: .92rem; color: var(--navy); }
.field label em { font-style: normal; color: var(--muted); font-weight: 500; }
input[type=text], input[type=email], input[type=tel], textarea, select {
  font: inherit; padding: 13px 14px; border-radius: 10px; border: 1px solid rgba(15,40,80,.18); background: rgba(255,255,255,.9); color: var(--text); width: 100%;
}
input:focus, textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 4px rgba(31,99,198,.15); }
textarea { min-height: 110px; resize: vertical; }
.consent { display: flex; gap: 12px; align-items: flex-start; font-size: .95rem; color: var(--text); margin: 6px 0 24px; }
.consent input { width: 20px; height: 20px; margin-top: 2px; flex: none; accent-color: var(--blue); }
.hp { position: absolute; left: -9999px; }
.form-error { color: #b42318; font-weight: 600; margin-bottom: 14px; }
.success { text-align: center; padding: 30px 10px; }
.success .tick { width: 64px; height: 64px; border-radius: 50%; background: linear-gradient(135deg, #1f8a4c, #36b26b); color: #fff; display: grid; place-items: center; font-size: 2rem; margin: 0 auto 18px; }
.privacy { font-size: .82rem; color: var(--muted); margin-top: 16px; }

/* Portfolio viewer */
.viewer { max-width: 1180px; margin: 0 auto; padding: 110px 20px 60px; }
.viewer-head { color: #fff; margin-bottom: 30px; }
.viewer-head h1 { font-size: clamp(2rem, 4.5vw, 3.2rem); }
.viewer-head p { color: #d2ddef; max-width: 760px; }
.slides { display: grid; gap: 26px; }
.slide { position: relative; border-radius: 14px; overflow: hidden; background: #fff; box-shadow: 0 24px 60px rgba(0,0,0,.35); user-select: none; -webkit-user-select: none; }
.slide img { width: 100%; pointer-events: none; -webkit-user-drag: none; }
.slide::after { content: ""; position: absolute; inset: 0; } /* blocks direct image interaction */
.slide-no { position: absolute; right: 12px; bottom: 10px; z-index: 2; font-size: .75rem; font-weight: 700; color: var(--navy); background: rgba(255,255,255,.85); padding: 3px 9px; border-radius: 999px; }
.watermark { position: fixed; inset: 0; pointer-events: none; z-index: 40; overflow: hidden; opacity: .07; }
.watermark div { position: absolute; inset: -50%; display: flex; flex-wrap: wrap; align-content: flex-start; gap: 90px 120px; transform: rotate(-24deg); font-weight: 800; font-size: 1.1rem; color: #0b1f3a; white-space: nowrap; }
.viewer-note { color: #c9d6ea; font-size: .88rem; text-align: center; margin-top: 30px; }
@media print { body { display: none !important; } }

/* ===== Tablet ===== */
@media (max-width: 1000px) {
  .tiles { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr 1fr; }
  .split { grid-template-columns: 1fr; gap: 40px; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .foot-grid > div:first-child { grid-column: span 2; }
  .services, .stats-band, .page-bg { background-attachment: scroll; }
}

/* ===== Phone ===== */
@media (max-width: 760px) {
  body { font-size: 16px; }
  .section { padding: 72px 0; }
  .wrap { padding: 0 18px; }
  .menu-btn { display: block; }
  .menu {
    display: none; position: absolute; top: 76px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0; background: rgba(255,255,255,.96);
    -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line); padding: 8px 20px 20px; box-shadow: 0 20px 30px rgba(11,31,58,.12);
  }
  .menu.open { display: flex; }
  .menu a, .solid .menu a { color: var(--text); padding: 13px 0; border-bottom: 1px solid var(--line); }
  .menu a.btn { margin-top: 14px; justify-content: center; border-bottom: 0; }
  .brand { font-size: .9rem; }
  .brand img { width: 34px; height: 34px; }
  .hero { min-height: 90vh; align-items: flex-end; background-size: auto 100%; background-position: 64% center; }
  .hero::before { background: linear-gradient(0deg, rgba(6,16,34,.92) 0%, rgba(6,16,34,.55) 50%, rgba(6,16,34,.05) 100%); }
  .hero-chips { display: none; }
  .statement { padding: 72px 0 10px; }
  .tiles, .stats-grid, .team-grid, .values, .grid-2 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .tile { min-height: 0; padding: 26px 22px; }
  .tile .num { margin-bottom: 16px; }
  .portfolio-cta { padding: 200px 0 40px; }
  .cta-card { padding: 28px 22px; grid-template-columns: 1fr; }
  .cta-card .qr { display: none; }
  .foot-grid { grid-template-columns: 1fr; }
  .foot-grid > div:first-child { grid-column: auto; }
  .form-card { padding: 24px 18px; }
  .form-wrap { padding-top: 100px; }
  .viewer { padding: 96px 12px 40px; }
  .slides { gap: 14px; }
}